Frequency: Number of complete waves in one second (Hz)
Wavelength: Distance between matching points on the wave (m)
Longitudinal: Vibration parallel to direction of travel
Transverse: Vibration at right angle to direction of travel
About the video:
- Sound is normally caused by objects vibrating
- Is variations in pressure what gives you a sound wave
- When we clap our hands you can see that they vibrate quite a lot, but this is actually the source of noise, you are creating acceleration noise. The air between our hands creates a little compression wave (witch is an acoustic wave, it's what we hear)
- If waves are above of the speed of sound, these waves get bunch together and eventually form a shockwave, witch is the sonic boom your hear
Speed: Distance travelled in unit time (m/s)
Frequency: Number of complete waves in one second (Hz)
Wavelength: Distance between matching points on the wave (m)
Longitudinal: Vibration parallel to direction of travel
Transverse: Vibration at right angle to direction of travel
About the video:
- Sound is normally caused by objects vibrating
- Is variations in pressure what gives you a sound wave
- When we clap our hands you can see that they vibrate quite a lot, but this is actually the source of noise, you are creating acceleration noise. The air between our hands creates a little compression wave (witch is an acoustic wave, it's what we hear)
- If waves are above of the speed of sound, these waves get bunch together and eventually form a shockwave, witch is the sonic boom your hear